Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $4785 and you need to know how much will you save on your purchase if the discount is 21 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (4785 x 21) / 100
Amount Saved = 100485 / 100
Amount Saved = $1004.85 (answer).
In other words, a 21% discount for a purchase with an original price of $4785 equals $1004.85 (Amount Saved), so you'll end up paying 3780.15.